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Note: Except for these pages, this 
manual reads from back to front.

Summary of Contents for G-20DA

Page 1: ...this pump please read this manual carefully before operation After reading the manual keep it in yourfile for future reference Specifications in this manual are subject to change without notice due to...

Page 2: ...ce with the Private Information Protection Law the provided information will be used only for determining the cause of failure and whether detoxifying washing should be conducted It will never be prov...

Page 3: ...re Aspiration Hazard Aspiration Hazard Information is not classified as Aspiration Hazard 12 Ecological Information Ecotoxicity Persistence and Degradability Bioaccumulative Potential Mobility in Soil...

Page 4: ...asures Incompatible Materials Conditions for Safe Storage Do not handle until all safety precautions have been read and understood Be cautious not to use any naked fire As vapors released from petrole...

Page 5: ...a pump and the like to take out of container Do not suck through a tube Do not weld heat hole and cut off the container Residues may ignite involving explosion Refer to 8 Exposure Controls Personal Pr...

Page 6: ...and or replacement of parts Normal usage conditions refer to the following a Ambient temperature and humidity during operation 7 40 C below 85 RH b Operation in accordance with the user manual 3 Repai...

Page 7: ...Fig 11 o isassembl D y raw1ng of G 25SA Fig 12 o isassembly D raw1ng of G 50SA 28 27...

Page 8: ...DA Rotor 12 Vane 1ST 20Xl3Xt4 S45C 2 13 Vane 2N 13Xl1Xt4 S45C 2 Pomp room 14 Discharge valve 9X24Xt0 1 SUS 2 15 Vane spring cp 2 4X24 SWP 2 G 25SA Rotor 16 Vane 20Xl3Xt4 S45C 2 Side cover 17 Ball bear...

Page 9: ...he oi 1 Oi 1 shortage low cooling effect High temperature evacuating gases No circulating oil Clogging the oi 1 aperture of the pump cover Too sufficient oil quantity for the specified level Continuou...

Page 10: ...e reduction CD Low pumping capacity for CD Re select the pumping vacuum vessel volume capacity 3 4 4 5 5 2 Vacuum pressure measuring is Measure the vacuum pressure 5 1 not correct correctly Inadequate...

Page 11: ...pider of coupling When broken the spider of coupling Change the spider of coupling by r6 4 Replacement of Spider in CouplingJ 7 Inspecting the oil mist trap When applying the oil mist trap instead of...

Page 12: ...vacuated gases may cause clog the mesh filter and down pumping efficiency 5 Inspecting the abnormal noise or vibration Check up any loose screws and nuts 18 6 Maintenance Inspection Repair 6 1 Mainten...

Page 13: ...por included in the gas could not be measured by the McLeod gauge In actual vacuum system the ultimate pressure reading will be higher than the catalog description This reason will be shown as follows...

Page 14: ...open pump vent valve B then turn off power switch of the pump see Fig 5 If stopping the pump by no opening pump vent valve the oil will be filled inside the pump cylinder within several minutes This...

Page 15: ...ting or over loading of the motor are consequences of excessive pressure inside the pump This pump is not a compressor The maximum pressure inside this pump is 0 03 MPa GAUGE Do not stop and restart t...

Page 16: ...m Rated Point 0 95 0 98 DomainB Voltage P U 1 10 1 1 00 I 02 0 91 0 93 90 DomainA Frequency 03 P U Fig 6 Change region of the voltage and frequency IO 3 4 Electric wiring 1 This pump has performed be...

Page 17: ...t is provided with vacuum rubber hose Do not eliminate mesh filter for preventing different objects come into the inlet port of the pump 8 Exaust Por 8 Suet on pi 0 level Oil level gauge Oran plug Fig...

Page 18: ...oil one time charge to the pump or recommended oil SMR 100 up to specified quantity through the oil filling port In first oil charging pour the oil up to maximum scale of oil gauge Then attach the exh...

Page 19: ...riven motor As it is a small sized lightweight and simple structure it is easy to maintain or over haul Table 1 Specification Model G 20DA G 25SA G 50DA G 50SA Type Sliding vane Sliding vane Sliding v...

Page 20: ...ake proper and practical treatments which are adapted handling the oil After understanding the above mention these treatments must be done Therefore MSDS is a not safety warranty 2 1 For Safety Operat...

Page 21: ...Sheet for Vacuum Pump Oil SMR 100 Contents 3 4 4 5 7 8 10 16 16 21 26 27 28 3 18 22 25 4 Operational Instructions 4 1 Operational Precautions 4 2 Start up Operation 4 3 Shut down Operation 4 4 Oil sh...

Page 22: ...2 1 Principal Features 2 2 Dimensional Drawings G 20DA 25SA 50DA 50SA 3 Setting up 3 1 Installation 3 2 Oil charging 3 3 Vacuum Tubing 3 4 Electric wiring 3 5 Fluctuations in the power voltage and fre...

Page 23: ...out of direct sun light g Keep away from heat source _ NOTE Do not treat with force or lay on its side It may cause damage 05 Do not use this pump in an explosive or flammable atmosphere It may cause...

Page 24: ...WARN I NG ________________ Do not plug exhaust port or place any materials inside of exhaust port because it will reduce pumping speed during operation Pump explosion oil level gauge bursting or motor...

Page 25: ...ke sure there are no damages To ensure a long life for this pump read this manual carefully prior to installation operation and maintenance Also pay attention to ascertain the details of safety specif...

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